I want help I need help , quiick, im dyeing heelp
The tank is leaking at the rate of 1/2 a litre an hour. How many days will it also take to fill 6 buckets which each hold 10 litre.

Answer:

the correct answer is f(x)=(x-2)^2 + 1

Step-by-step explanation:

lets loof for f(2) :

f(2)=(2-2)^2 + 1

f(2)=(0)^2 + 1

f(2)= 1 ---> (2,1)

Answer:

top one =75

bottom one=65

Step-by-step explanation:

all angles should equal to 180

so 180-40=140

the sum of th eother two angles will be 140

so 4x-5+3x+5=140

now solve for x

x=20

subsitute for x

4(20)-5=75

3(20)+5=65

please mark brainliest if correct

The linear function for this problem is defined as follows:

y = x + 50.

The slope-intercept equation for a linear function is presented as follows:

y = mx + b

In which:

The graph touches the y-axis at y = 50, hence the intercept b is given as follows:

b = 50.

When x increases by 10, y also increases by 10, hence the slope m is given as follows:

m = 10/10

m = 1.

Hence the function is given as follows:

y = x + 50.

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By using the concept of Population and sample, it can be concluded that

The above data would be a population of weights because they represent all of the football players.

The first option is correct

What is population and sample?

Population is the set where all item are the members of the sets and from where the set of items can be drawn for statistical study

Subset of population is called sample

Here the data would be a population of weight because they represent all of the football players .

This is not a subset. So the question of sample will not come into existance here

So the first option is the correct option

The above data would be a population of weights because they represent all of the football players.

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Complete Question

The statistical data has been given below

Following are the published weights (in pounds) of all of the team members of Football Team A from a previous year. 176; 202; 212; 212; 232; 205; 185; 185; 178; 210; 206; 212; 184; 174; 185; 242; 188; 212; 215; 247; 241; 223; 220; 260; 245; 259; 278; 270; 280; 295; 275; 285; 290; 272; 273; 280; 285; 286; 200; 215; 185; 230; 250; 241; 190; 260; 250; 302; 265; 290; 276; 228; 265

Answer:

(2) Graph 2

Step-by-step explanation:

Question 40

Answer:

C

Step-by-step explanation:

Domain is what x values are allowed in a function

Answer:

answer

Step-by-step explanation:

Given :

B is between A and C

AB= x²-6x

BC= x²+20x

AC= 60-12x

B divide into 2 equal parts

AB and AC are equal

AC = AB +BC

60-12x = x²-6x + x²+20x

\(60= 2x^{2} -6x +20x +12x\)

\(60 = 2x^{2} -6x +32x\\\)

\(60= 2x^{2} +26x\)

\(30 = x^{2} +13x\\\\\)

\(x^{2} +13x -30 = 0\\x^{2} +15x-2x-30 =0\)

\(x(x+15) -2 (x+15) =0\)

\((x-2) (x+15) =0\\\)

x=2 , x=-15

x never be negative the x is 2

BC =  x²+20x

BC = 2*2 +20*2

BC = 4 +40

BC = 44

length of BC =44

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The standard deviation of f$ ar{x},f$ is usually called the "sample standard deviation".

This is a commonly used statistical measure that represents the amount of variation or dispersion within a set of data. It is calculated by taking the square root of the variance, which is the average of the squared differences from the mean.

The sample standard deviation is often used to compare the variability of different sets of data and to determine the significance of differences between them. Financial contracts known as derivatives are those entered into by two or more parties and whose value is derived from an underlying asset,

collection of assets, or benchmark. A derivative may be traded over-the-counter or on an exchange. Derivative prices are based on changes in the underlying asset.

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Therefore , the solution of the given problem of equation comes out to be  x must be less than -5 for any value of x that causes 5 + x = n to be a negative number.

In order to demonstrate consistency between two opposing statements, variable words are frequently used in sophisticated algorithms. Equations are academic phrases that are used to demonstrate the equality of different academic figures. Consider expression the details as y + 7 offers. In this case, elevating produces b + 7 when partnered with building y + 7.

Here,

If n is a negative number and 5 + x = n, then x must be less than -5.

This is due to the fact that n would be greater than or equal to 5, which is not a negative number, if x were greater than or equal to -5, which would lead 5 + x to be greater than or equal to 0.

However,

if x is less than -5, then 5 + x will be less than 0, and n will be a negative number because n will be less than 5.

Therefore, x must be less than -5 for any value of x that causes 5 + x = n to be a negative number.

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Answer:

  T/V = P/(nR)

Step-by-step explanation:

You want to find T/V from the equation PV = nRT.

T is in the numerator of the ratio you want. V is on the other side of the equation from T, so you can put V in the denominator by dividing both sides of the equation by V:

  \(P=\dfrac{nRT}{V}\)

Now, you can get the ratio T/V by itself by dividing by its coefficient:

  \(\dfrac{P}{nR}=\dfrac{T}{V}\)

Swapping sides gives you the relation you want:

  \(\boxed{\dfrac{T}{V}=\dfrac{P}{nR}}\)

__

Additional comment

Isolating variables and solving equations using the properties of equality should be familiar processes.

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Two or more shapes are said to be similar if they have common corresponding properties of sides and/ angles. Thus the error made is option D.

Similar shapes are two or more given shapes that have some common properties with respect to their corresponding sides or angles. So that if on comparing each corresponding sides or angles, and are related, then they are similar. Note that similarity does not imply congruency.

Comparing the sides and angles of the given triangles ΔLMN and ΔQRS, it can be seen that;

Angle Side Angle (ASA) similarity relation implies that the included side between two pairs of congruent angles are similar. Thus, the error made in the diagram is explained in option D.

Option D. The ASA Postulate cannot be used to prove the congruence of the two triangles as shown because the included sides between the two pairs of congruent angles are not marked as congruent in both triangles.

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3 km is equivalent to 1.86 miles.both are unit of measurement of distance.

To convert kilometers (km) to miles (m), you can use the conversion factor 1 mile = 1.609 kilometers. To convert 3 kilometers to miles, you would multiply 3 by 0.621371, which would give you the answer of 1.86 miles. As the kilometers is commonly used in metric system, while the miles is used in imperial system and is commonly used in the United States,

it's important to always make sure you are using the appropriate unit of measurement for your needs and to convert between units if necessary. Additionally, it's always good to double check your conversions by using a calculator or online conversion tool to ensure accuracy.

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Answer: C

Step-by-step explanation: the key is to look at the relationships between the numbers. The y value increments by 5.5 or 5 respectively, which LOOKS like additive. However, it is actually multiplicitve, since the question is the relation between X and y, not the y values. From there you can simply test that 5x1=5, 5x2=10, etc, etc.

The given expression 8y + 14 can be factored as 2 (4y + 7) using the GCF.

Factorization, also known as factoring, is the breakdown of one element into a product of other objects, or factors, which when multiplied together generate the original.

The expression given in the question is:

⇒ 8y + 14

To factor the expression 8y + 14 using the greatest common factor (GCF), we first need to find the GCF of the two terms.

The GCF of 8y and 14 is 2, because 2 is the largest number that divides evenly into both 8y and 14.

We can then use the GCF to factor the expression as follows:

⇒ 8y + 14 = 2 (4y + 7)

Therefore, the expression 8y + 14 can be factored as 2 (4y + 7) using the GCF.

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Answer:

the answer would be -110(c⁴d²e³)

Hope this helps!

a. The number of teenagers that like hard rock is of: 272.

b. The number of teenagers surveyed is of: 200.

c. A percentage greater than 100% is when the percentage of an amount is calculated relative to an smaller amount.

The measures are obtained applying the given proportions and percentages in the context of the problem.

For item a, the amount is of 32% of 850, hence:

0.32 x 850 = 272 teenagers like hard rock.

For item b, we have that 75% = 0.75 of the amount x is of 150, hence the total amount of teenagers surveyed is obtained as follows:

0.75x = 150

x = 150/0.75

x = 200 teenagers were surveyed.

A percentage is calculated as the division of an amount a by an amount b. Hence, if the amount a is greater than the amount b, the percentage will be greater than 100%.

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Answer:

4x +7 = ?  

Step-by-step explanation:

It was easy except you need more info to solve the equation

Answer:

4u-12

Step-by-step explanation:

perimiter is adding it all

Use the Law of Sines to find a:

Since both a and the angle A are unkowns, we need to find the measure of the angle opposite to the side A first. Notice that two of the interior angles of the triangle are given. Remember that the sum of the internal angles of every triangle must add up to 180º.

Then:

Then, the angle opposite to the side with length a has a measure of 50º.

Isolate a from the equation of the law of sines and replace A=50º to find the length a:

Therefore, to the nearest tenth, the length of a is equal to 44.1cm.

Answer:

z=-k/36-n/36

Step-by-step explanation:

-15z-k=21z+n

+15z    +15z

-k=36z+n

/36 /36 /36

z=-k/36-n/36

-hope it helps

Step-by-step explanation:

7x-8y = - 5     arrange to   y = mx+ b  form    m is the slope of this line

8y = 7x+5

y = 7/8 x = 5/8     <======   m, slope = 7/8  

           perpendicular slope =  - 1/m  =  - 8/7

Now use point ( -7,3)   slope (-8/7)  form:

  y-3   = - 8/7 ( x - - 7)     simplify

   y = -8/7 x  + 5          re-arrange ,   add  8/7 x to both sides of the equation

   8/7 x  + y = 5                 multiply through by 7 to get integer values

      8x + 7y =  - 35  

Answer:

true

Step-by-step explanation:

because there's less humidity

The equation line of the of the road in slope-intercept form is; y = 2·x - 10

The standard form of the equation of a line is Ax + Bx + C, where A, B, and C are constants and A and B are nonzero numbers.

The parameters for the new road are;

The road will be parallel to village way with points (0, 5), and (-4, -3)

The road will pass through the intersection  of Gray Dr and Canon Rd., which is the point with coordinates (3, -4)

Required; The equation of the road

Since the new road is parallel to Village Way, which has slope;

m = (5 - (-3))/(0 - (-4)) = 8/4 = 2

The slope of the new road will also be 2.

Let the equation of the new road be y = m·x + c, where m = 2 is the slope we just found. To find c, we use the fact that the road passes through the point (3, -4);

y - (-4) = 2 × (x - 3)

y = 2·x - 6 - 4 = 2·x - 10

y = 2·x - 10

Therefore, c = -10

Therefore, the equation of the new road in slope-intercept form, therefore is; y = 2·x - 10

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To maximize the likelihood function, we take the derivative with respect to θ and set it equal to zero: d/dθ[L(θ|X1,X2,...,Xn)]=−n/θ+(X1+X2+⋯+Xn)/θ2=0.

The MLE for θ in the exponential distribution is simply the sample mean of the observed data.

The exponential distribution is a continuous probability distribution that describes the time between events in a Poisson point process. X1,X2,...,XnX1,X2,...,Xn is a random sample of size n from this distribution, which means that each XiXi is an independent and identically distributed random variable with the same exponential distribution.

The probability density function (pdf) of the exponential distribution is given by f(x:θ)=(1/θ)e−x/θ, where θ is the scale parameter. This means that the probability of observing a value x from the distribution is proportional to e−x/θ, with the constant of proportionality being 1/θ.

To estimate the value of θ based on the observed data, we can use the method of maximum likelihood estimation (MLE). The likelihood function for the sample X1,X2,...,XnX1,X2,...,Xn is given by L(θ|X1,X2,...,Xn)=∏i=1n(1/θ)e−Xi/θ=(1/θ)n e−(X1+X2+⋯+Xn)/θ.

Solving for θ, we get θ=(X1+X2+⋯+Xn)/n, which is the sample mean.

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This is because convenience samples are chosen based on the ease of access to participants and are not necessarily representative of the entire population.

This is because convenience samples are chosen based on the ease of access to participants and are not necessarily representative of the entire population.

In general, it is not expected that a convenience sample would provide an accurate representation of the full population.

A more accurate representation of the full population would require a random sample, which would ensure that every member of the population has an equal chance of being selected for the sample.

This would provide a more representative sample and allow for more accurate statistical analysis.

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To find the sum of the vertex angles in various polygons, we need to sketch the polygons and then calculate the sum. For a hexagon, octagon, and dodecagon, the sums of the vertex angles are 720°, 1,080°, and 1,800°, respectively.

a. Hexagon: A hexagon is a polygon with six sides. To find the sum of the vertex angles, we can divide the hexagon into triangles. Since each triangle has an interior angle sum of 180°, the hexagon can be divided into four triangles. Therefore, the sum of the vertex angles in a hexagon is 4 * 180° = 720°.

b. Octagon: An octagon is a polygon with eight sides. Similar to the hexagon, we can divide the octagon into triangles. Dividing it into six triangles, each with an interior angle sum of 180°, the sum of the vertex angles in an octagon is 6 * 180° = 1,080°.

c. Dodecagon: A dodecagon is a polygon with twelve sides. Dividing it into ten triangles, each with an interior angle sum of 180°, the sum of the vertex angles in a dodecagon is 10 * 180° = 1,800°.

Therefore, the sum of the vertex angles in a hexagon is 720°, in an octagon is 1,080°, and in a dodecagon is 1,800°.

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Find the sum of the vertex angles of the following polygons---

a. A hexagon

b. An octagon

c. A dodecagon.

Answer:

i think it b or d

Step-by-step explanation:

hope it helps!

Answer: C

Step-by-step explanation: C

2 divided into 9 parts is 2/9.

Let's' explain this visually

Take this pizza, (image below)

Let's say we have two pizzas for 8 friends (including ourselves), so naturally, we'll cut the pizza's each into 9 slices, 1 for each, now everyone gets 1/9 of a pizza, but there are two pizzas, so if we add 1/9+1/9, we'll get two ninths.

Now 2/9=0.2 repeating!

This is how I got my answer sorry for the vague  explanation